Wrench.



H. W. KLINGENSMITH.

WRENCH.

APPLICATION FILED FEB- 10, 1915. I 1,147,514. Patented July 20, 1915.

2 SHEETS-SHEET l- FOLUMBIA PLANpuRAPH CO, WASHINGTON, D. C

H. W. KLINGENSMITH.

WRENCH.

APPLICATION FILED FEB. 10, 1915.

1,147,514. Patented July 20, 1915.

I 2 SHEETSSHEET 2v amoawtoz q Vi/wemo COLUMBIA PLANOGRAPH (IO-.WASHINGTON n 1.

H WKZZI gewmu/Z HARVEY W. KLING-ENSMITH, OF REYNOLDSVILLE, PENNSYLVANIA.

' WRENCH.

Application filed February 10, 1915. Serial No. 7,354.

To all whom it may concern:

Be it known that I, HARVEY W. KLINGEN- SMITH, a citizen of the United States, residing at Reynoldsville, in the county of Jefferson and State of Pennsylvania, have invented new and useful Improvements in Trenches, of which the following is a specification.

The present invention relates to improvements in wrenches.

In carrying out my invention I propose to construct a wrench which may be easily and quickly operated to bring the jaws into con-,

tact with the object to be engaged thereby, which shall firmly engage with the said object, but which may be readily released therefrom when desired. I

I also aim to provide a quick acting wrench with means for forcing one of the jaws against the object engaged between the jaws and therefore forcing the object against the second jaw to retain such a pressure between the jaws as long as the wrench is in operation.

A further object of the invention is to provide means whereby the jaws will automatically spread away from an engaged object to permit of the ready removal of the wrench from the object when the pressure upon the handle of the wrench is released.

With the above and other objects in view, the improvement resides in the construction, combination and arrangement of parts set forth in the following specification and falling within the scope of the appended claims.

In the drawings: Figure l is a side elevation of a wrench constructed in accordance with the present invention, Fig. 2 is a top plan view of the same, Fig. 3 is a longitudinal sectional view approximately on the line 33 of Fig. 2, Fig. 4 is a sectional view on the line H of Fig. 1, Fig. 5 is a similar sectional view approximately on the line 5-5 of Fig. 1, Fig. 6 is a detail sectional view approximately on the line 66 of Fig. 1, Fig. 7 is a perspective view of the handle and the members carried thereby, and Fig. 8 is a perspective view of the locking pawl. Referring now to the drawings in detail, the numeral 1 designates my improved wrench in its entirety. The wrench includes a shank 2 having one of its ends provided with a head or jaw 3, the opposite end of the shank 2 is formed upon its opposite sides with substantially elongated slots 4. These slots are adapted to receive inturned portions or lugs 6 provided upon a handle 7,

Specification of Letters Patent.

Patented uly 20, 1915.

the said handleincluding a member pro,- vided W1th a longitudinally extending channel 8, and the end of the shank 2 rests within the said channel and contacts with the opposite walls provided by the channel. Formed with the handle 7 below the channeled portion thereof and extending longitudinally with one of the edges of the shank 2 is a bar 8, the said bar having its free longitudinal edge or its longitudinal edge not contacting with the shank 2 provided for a determined length with transverse teeth 9. These teeth preferably comprise vertical shoulders and inclined portions connecting the said shoulders, and the inclined portions are directed toward the jaw 3. Pivotally secured, as at 10, between the side members of the handle 7 is what I term a grip lever, indicated by the numeral 11, the outer portion of which being normally projected beyond the handle through the medium of a spring 12, the said spring engaging with the rib 13 upon the inner edge of the lever andthe corresponding rib 14L pro-. vided in the lower or connecting wall of the channel 8.

The numeral 16 designates a hook which is secured to the lever 11 opposite its pivot 10, and the numeral 17 designates a similar hook which is secured to the shank 2, while the numeral 18 designates a ring connecting the said hooks 16 and 17.

Arranged for slidable movement upon the shank 2 as well as for movement upon the bar 8 is a carriage 19, the said carriage having its sides cut-away to provide openings 20, and pivotally secured to the said carriage, adjacent jaw 21 thereof is the arm 22 of a pawl 23, the said pawl bein normally forced toward. the teeth 9 throng the medium of a spring 24. The pawl includes a head 25 which is bifurcated and the lower wall of the bifurcation is pro vided with teeth 26, the side members of the head straddling the bar 8, and if necessary, a portion of the sides of the shank 2 while the teeth are forced into engagement with the teeth 9 by the spring 24. The members 25 are preferably round and have their outer faces dished, as at 27, so that the same may be readily engaged by the thumb and forefinger of the operator and the carriage 19 readily slid to bring its jaw 21 toward or away from the jaw 3 of the shank 2.

In operation, the object to be operated upon is engaged by the jaw 8, the pawl 23 is brought out of engagement with the teeth 9 to permit of the carriage 19 being slid to bring its jaw 21 into contact with the said object. The lever 11 is forced partiallywithin the channel 8 of the handle 7, which movement causes the hook 18 to draw the shank 1 in the direction of the handle, or the jaw 3 toward the jaw 21, causing the object to be more firmly engaged between the jaws. It will be noted that immediately upon release of the grip lever, the spring 12 will force the same out of the channel, thus moving the jaw 3 away from the jaw 21 of the carriage 19, and so permitting the wrench to be readily released from the object previously engaged thereby.

From the above description, taken in connection with the accompanying drawings, the simplicity of the device,as well as the advantages thereof will, it is thought, be perfectly apparent to those skilled in the art to which such invention appertains without further detailed description.

Having thus described the invention, what I claim is:

1. In a wrench, a headed shank, said shank having its sides adjacent its end opposite that provided with the head formed with longitudinally extending slots, and a handle having offset portions arranged within the slots, said handle comprising a channel member and receiving the ends of the said shank, a grip lever pivotally secured within the channeled handle, a connection between the grip lever and the shank, said handle Gopies of this patent may be obtained for five cents each, by addressing the including a longitudinally extending toothed bar which is arranged to contact with one of the edges of the shank, a carriage mounted for movement between the shank and the toothed bar, and a spring pressed dog carried by the carriage and engaging the teeth of the bar.

2. The herein described construction of wrenches including a shank having one of its ends provided with a head, its opposite end provided with longitudinally eXtending slots, the channeled handle having oiii'set portions engaging within the slots, a spring pressed gripping lever pivoted within the channel of the handle and normally forced out of the said channel, a flexible connection between the grip lever and the shank, a bar arranged longitudinally of the shank and connected with the handle, said bar being provided with transverse teeth, a slidable carriage including a jaw upon the shank and upon the toothed bar, said carriage having its opposite sides open, a spring pressed pawl carried by the handle, said pawl including a slotted head, the lower wall of which being provided with teeth which are adapted to oo-act with the teeth of the bar, all substantially as and for the purpose set forth.

In testimony whereof I afiix my signature in presence of two witnesses.

HARVEY W. KLINGENSMITH.

Vitnesses SMITH M. MOCREIGHT, RoB'r. Z. PARRISH.

Commissioner of Patents,

Washington, D. 0. 

